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Top Forums Shell Programming and Scripting awk or a combination of commands to read and calculate nth lines from pattern Post 303029920 by jessandr on Sunday 3rd of February 2019 12:47:35 AM
Old 02-03-2019
awk or a combination of commands to read and calculate nth lines from pattern

Two numerical lines, found by either header line, need to be added
and the total placed in a new-header section. Also the total should
should be rounded or cut to a two decimal anynumber.XX format
with the AB string added on the end.

For example: The numerical lines from headers 2 and 3 are to be added together
and placed in the 4th line of the new-header grouping.
The new line would show 13.24 AB

The data file:
Each grouping contains 4 lines.
The line numbers may change every time the data file is accessed.
The numerical lines may or may not have a type (AB in this example) listed after the number.
The third line in the group, the info line, may or may not be the same.


Data file:

Code:
header1
header1 - description
info-abc
1.23 AB
header2
header2 - description
info-def
10.678 AB
header3
header3 - description
info-abc
2.5678

A new section would then be added to the end of the data with no empty line above:

Code:
new-header
new-header - description
info-xyz
13.24 AB


Last edited by jessandr; 02-03-2019 at 01:58 AM..
 

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DISTRIB.PATS(5) 					    InterNetNews Documentation						   DISTRIB.PATS(5)

NAME
distrib.pats - Default values for the Distribution: header DESCRIPTION
The file pathetc/distrib.pats is used by nnrpd to determine the default value of the Distribution: header. Blank lines and lines beginning with a number sign ("#") are ignored. All other lines consist of three fields separated by a colon: <weight>:<pattern>:<value> The first field is the weight to assign to this match. If a newsgroup matches multiple lines, the line with the highest weight is used. This should be an arbitrary integer greater than zero. The order of lines in the file is only important if groups have equal weight (in which case, the first matching line will be used). The second field is either the name of a newsgroup or a uwildmat(3)-style pattern to specify a set of newsgroups. The third field is the value that should be used for the Distribution: header of a posted article, if this line was picked as the best match and no Distribution: header was supplied by the user. It can be an empty string, specifying that no Distribution: header should be added. If it is not empty, it is better to only use US-ASCII characters for that field; otherwise, make sure it is encoded in UTF-8. When a post is received by nnrpd that does not already contain a Distribution: header, each newsgroup to which an article is posted will be checked against this file in turn, and the matching line with the highest weight will be used as the value of the Distribution: header. If no lines match, or if the matching line has an empty string for its third field, no header will be added. In case a distribution is added by nnrpd, make sure it is not rejected by the newsfeeds "ME" entry. A list of recommended distributions can be specified and described in distributions(5). HISTORY
Written by Rich $alz <rsalz@uunet.uu.net> for InterNetNews. Converted to POD by Russ Allbery <rra@stanford.edu>. $Id: distrib.pats.pod 8803 2009-11-15 09:29:41Z iulius $ SEE ALSO
distributions(5), inn.conf(5), newsfeeds(5), nnrpd(8), uwildmat(3). INN 2.5.2 2009-11-15 DISTRIB.PATS(5)
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